Finding the Fourth Proportional to 213,170.99, 319,681.42 and 70,977.65
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Solution
The fourth proportional to 213,170.99, 319,681.42 and 70,977.65 is: 106,441.48
Step by Step Solution
- Step 1: Write the proportion equation
213,170.99 : 319,681.42 = 70,977.65 : x - Step 2: Convert to fraction form
213,170.99/319,681.42 = 70,977.65/x - Step 3: Cross multiply
213,170.99x = 319,681.42 × 70,977.65 - Step 4: Simplify right side
213,170.99x = 22,690,234,164.41 - Step 5: Solve for x
x = 22,690,234,164.41/213,170.99 - Step 6: Final answer
x = 106,441.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.